1. Etched track radiometers in radon measurements a review

2. -cellulose nitrate (LR 115 and DNC) -polycarbonate (Makrofol E) -allyl diglycol carbonate (CR-39).

3. 1. Open ("bare") detectors 2. Open chambers 3. 222 Rn Radiometers with an inlet filter 4. 222 Rn Radiometers with improved parameters

4. 5. Multipurpose radiometers 6. Combinations of an etched track detector and an electrostatic field 7. Combination of an etched track detector and activated charcoal 8. Methods and devices for identification of isotopes of radon and radon daughters by means of track parameter measurements

6. The End